Demountable rim.



A. R. BEHNKE. DEMOUNTABLE RIM.

APPLIOATION FILED SEPT. 23, 1909.

1. 11 OUT n in m m H as 82 t H e LIU & P

A. R. BEHNKE.

DEMOUNTABLE RIM. I

APPLICATION FILED SEYT. 2a, 1901 981,740, Patented Jan.17,1911.

2 SHEETBSHEET 2.

// MFA/rm? ALBERT R. IBEIINKE, 055 ST. PAUL, MINNESQTA.

DEMQUNTABLE RIM.

Specification of Letterslatent.

Patented Jan. 1'7, 1911.

on the wheel and as readily removed therefrom.

A further object is to provide means which will securely clamp or look a tire or.

rim in position on the wheel felly.

My invention consists generally in various constructions and combinations, all as hereinafter described and pointed out in the claims.

In the accompanying drawings forming a part of this specification, Figure 1 is a side elevation'of a wheel with my invention applied thereon, Fig. 2 is a partial elevation of a wheel and tire showing the parts in their separated position, Fig. 3 is a detail :view illustrating the clamping or locking mechanism, Fig. 4 is a sectional View of the same, Fig. 5 is a transverse sectional view through the tire casing and rim and one member of the locking device, Fig. 6 is a detail sectional view of the wheel felly and the other locking members, Fig. 7 is a detail sectional view of the locking Wedge.

In the drawing, 2 represents an automobile wheel having a felly 3.

4 is the outer casing of a clencher type of tire having a rim Sinterlocking with the edges of the casing in the usual way. Between the felly and the rim, at intervals around the wheel, I provide locking devices. I have shown six of these devices on the wheel in Fig. 1, but a greater or less number may be employed according to the diameter of the wheel and the dimensions of the tire.

The locking devices are all alike except that one of them is made double to adapt it for its location on both sides of the valve stem. A description, therefore, of, one of the looking devices will suilice vfor all. Each locking device consists of a block member 6 secured to the rim 5 and having a tapered groove 7 therein arranged and cotiperating with a similar groove 8 provided in the other member S) which is secured to the fcllyS by means of lugs 10 and rivets 11. One end of the block 9 has a flange 12 thereon provided with a socket 13 to receive the threaded portlon of a bolt 14 and a ta ered sleeve 15 is arranged to slip over the olt l4 and.

into the tapered socket formedbetween the blocks 6 and 9 when placed one over the other and opposite one another.

The sleeve has an end 16v ada ted to receive a wrench and is interiorly t readed at one end to engage the threaded end of the bolt and a locking nut 17 is provided on the end of the bolt to prevent premature movement of the locking sleeve. When the parts are assembled and the tapered sleeves are inserted into the sockets, a wrench may be applied thereto until the sleeves are wedged firmly in the sockets and the tire'and rim are firmly locked on thefelly. Upon loosening the sleeves of two or more of the locking devices the rim and tire are rendered readily removable The degree of tension on the tire rim can be easily and quickly controlled by means of the locking sleeves, each one of which can be adjusted accurately and easily to take up any looseness of the parts and at the same time allow the rim to be accurately centered on-the wheel. It sometimes happens that the tire rim rusts on the telly to such an extent that removal is diflicult, but with my invention all objectionable features of this kind are eliminated and the removal or replacing of the tire and rim is easily performed. I

As heretofore stated, the locking device is duplicated at one point on the Wheel and provided'with a recess 18 into which the valve stem 19 of the tire is inserted. In other respects this locking member is the same as the others around the wheel.

I claim as my invention:

1. The combination, with a wheel felly, of a tire and rim inclosing the same, a series of blocks carried by said felly, flanges carried by said rim, the opposing surfaces of said blocks and rim having tapered grooves extending transversely of said rim, bolts passing through said flanges and lengthwise through said sockets, tapered sleeves carried by said bolts and in threaded connection therewith and having outer ends adapted to receive a wrench.

2. The combination, with a folly, of a tire and rim inclosing the same and spaced therefrom, locking devices provided at intervals around the periphery of said felly and between it and said rim, said locking devices including a series of blocks having transvei's'etapered sockets therein extending transversely of said wheel felly and bolts passing through said sockets and having locknuts thereon and sleeves tapered. from fend to end and carried bysaid bolts and fitting within said sockets and' in threaded engagement with said bolts and adapted to be rotated thereon to lock or release said rim.

3. The combination, with a wheel felly, of a tire and rim inclosing the same, a series of it blocks mounted'at intervals on said rim and Lhavin'g tapered grooves therein, a series of blocks carriedby said felly and also having tapered grooves cooperating with those in said rim blocks to form a series of tapered sockets extending transversely of the wheel felly, said felly blocks having flanges there- I -'on with which the blocks on said rim con- "In witness whereof, I have hereunto set my hand this 21st day of September 1909..

ALBERT R. BEHNKE.

\Vitnesses:

RICHARD PAUL, J. A. BYINGTON. 

